but police call their actions reckless. >> there is a criminal element to this from the standpoint that we don't know the motive or reason why mom removed emily from the hospital. >> reporter: investigators say what happened at phoenix children's hospital may be a case of child endangerment. they worry the catheter still in emily's heart could become infected. >> we've been told that by doctors is that the minute that this little girl gets an infection, certainly just a matter of days could result in her death. >> reporter: emily's father says he had nothing to do with his daughter's disappearance. over the weekend, he was questioned by border patrol officers as he reentered the united states from mexico. >> she's in very good hands now. >> reporter: the family who hasn't been charged with a crime say they removed emily from the phoenix hospital after she contracted a bacterial infection in her right arm which had to be amputated. they also say their family was pressured over health insurance and mounting medical bills. >> very upset, angry, and without any answers, and what happened. w